Drea begins with an excellent short summary of the Nomonhan Incident. His focus is specifically on one unit in the Japanese Army: 2nd Battalion, 28th Infantry Regiment, 7th Infantry Division (2/28th Infantry). This particular unit provides an interesting study because their war diary with day to day entries survives in Japan and this operated as an independent unit, fought in both offensive and defensive actions, and is neither too small or too large for detailed study.